Home / 61,032.10-91,438.80-21,564.04

Finding the Fourth Proportional to 61,032.10, 91,438.80 and 21,564.04

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Solution

The fourth proportional to 61,032.10, 91,438.80 and 21,564.04 is: 32,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,032.10 : 91,438.80 = 21,564.04 : x
  2. Step 2: Convert to fraction form
    61,032.10/91,438.80 = 21,564.04/x
  3. Step 3: Cross multiply
    61,032.10x = 91,438.80 × 21,564.04
  4. Step 4: Simplify right side
    61,032.10x = 1,971,789,786.02
  5. Step 5: Solve for x
    x = 1,971,789,786.02/61,032.10
  6. Step 6: Final answer
    x = 32,307.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.